Details: cleaning the existing w.b.m. road surface including removing of binding material and other foreign matter with wire brushes and small picks, sweeping with brooms or soft brushes and finally dusting with old gunny bags and/or compressed air to receive bituminous treatment. as per clause no 502.4.2 and 503.3.1 of most specification providing and applying tack coat on the prepared surface, heating bitumen in boiler and spraying the bitumen with sprayset fitted on bitumen boiler - on granular base such as wbm and wmm surfaces not bitumen primed. rate of application 10kg/10sqm providing, laying and rolling of built-up spray grout layer overprepared base consisting of a two layer composite construction of compacted crushed coarse aggregates using motor grader for aggregates. key stone chips spreader may be used with application of bituminous binder after each layer and with key aggregates placed on top of the second layer to serve as a base conforming to the line, grades and cross-section sp
Sector: District Administration